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Inverse Trigonometric Functions

JEE Main 2021 (Online) 20th July Morning Shift

MCQ+4 / -12021
The number of real roots of the equation \({\tan ^{ - 1}}\sqrt {x(x + 1)} + {\sin ^{ - 1}}\sqrt {{x^2} + x + 1} = {\pi \over 4}\) is :

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